Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29ae7c87d27f00e…

MALICIOUS

PDF

39.3 KB Created: 2020-08-15 14:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 895ce58e38351f649d4d83ffdc3ef4f3 SHA-1: ad83cc6166fa6d1482e34ef64ff133f9765ca17d SHA-256: e29ae7c87d27f00e73ace82e9a35c96ffbc18698a46d8cd83233a229ad842cc1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=google+script+spreadsheet+get+cell+value'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to redirect users to malicious content.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=google+script+spreadsheet+get+cell+value
    • http://files.thesenseofplace.com/uploads/1/3/0/7/130776104/folonajegubako.pdf
    • http://sufarad.yorkriverpaddlechallenge.ca/uploads/1/3/2/6/132681513/a6ff027.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kopamidije.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/28180519904.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0294/files/bv_doshi_books.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/waxigemoresalum.pdf
    • https://cdn.shopify.com/s/files/1/0433/6254/9910/files/72737452180.pdf
    • https://cdn.shopify.com/s/files/1/0441/2784/6552/files/55653445968.pdf
    • https://cdn.shopify.com/s/files/1/0437/5085/0714/files/gijeraxidazowexafepavi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2520/2325/files/66393935708.pdf
    • https://cdn.shopify.com/s/files/1/0431/9015/7473/files/81598979590.pdf
    • https://cdn.shopify.com/s/files/1/0437/0736/7592/files/54740446177.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c4d.bin
5a4003b44dbdcd0d646c70b4730a63bbcbd3df55b5e2553134bfea339a8b3242		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4D 5428 bytes
font_01_sfnt_off00006ec2.bin
39ed5cf74a4aafce39a79c12829a5198d10de719fdddacc8cf60b4ca4a9ba3fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC2 9980 bytes

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